package nettypro.netty.dubborpc.netty;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;


/**
 * @ClassName NettyServer
 * @Description TODO
 * @Author zeny
 * @Date 2020/3/27 0027 19:01
 */
public class NettyServer {
    public static void startServer(String hostName, int port) {
        startServer0(hostName, port);
    }
    private static void startServer0(String hostname, int port) {
        EventLoopGroup boss = new NioEventLoopGroup();
        EventLoopGroup worker = new NioEventLoopGroup();
        try {
            ServerBootstrap bootstrap = new ServerBootstrap();
            bootstrap.group(boss, worker)
                    .channel(NioServerSocketChannel.class)
                    .childHandler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        protected void initChannel(SocketChannel ch) throws Exception {
                            ChannelPipeline pipeline = ch.pipeline();
                            pipeline.addLast(new StringDecoder());
                            pipeline.addLast(new StringEncoder());
                            pipeline.addLast(new NettyServerHandler());
                        }
                    });
            ChannelFuture channelFuture = bootstrap.bind(hostname, port).sync();
            System.out.println("服务提供方开始提供服务...");
            channelFuture.channel().closeFuture().sync();
        }catch (Exception e) {
            e.printStackTrace();
        }finally {
            boss.shutdownGracefully();
            worker.shutdownGracefully();
        }
    }
}
